2 layers100 × 100 mm
2 layers100 × 50 mm
- Size
- 100 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 36
- Pads
- 112
- Tracks, vias
- 315, 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 20 Oct 2022
- Updated
- 22 Oct 2026
Overview
RFW26 is an open-source printed circuit board by IoTCloudStudio, from the IoTCloudStudio/HW_Develop repository on GitHub. It is a 2-layer board of 100 × 50 mm with 41 parts on 36 nets, routed with 315 tracks and 2 vias.
It is built around the LM2596S-5.0, AMS1117-3.3 and 470KD07, with the SS34, MF-R110 and MMBT5551L among its other parts. Its parts include 11 resistors, 8 connectors, 6 diodes, 5 capacitors and 2 ICs. It belongs with the ESP8266 boards of this library.
Main components
6
LM2596S-5.0
TO-263-5-40℃~+125℃@(TJ) 1 150kHz 3A 4.5V~40V 5V 5mA Buck Buck Built-in Fixed No TO-263-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
470KD07
插件,P=5mm1.1nF@1kHz 20mW 30V 38V 47V 500A 5J 93V 插件,P=5mm Varistors ROHSBrightkingVaristors
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
MF-R110
插件,P=5.08mm-40℃~+85℃ 1.1A 100mΩ 2.2A 270mΩ 30V 40A 6.6s 700mW 8.9mm 插件,P=5.08mm Resettable Fuses ROHSBournsResettable Fuses
MMBT5551L
SOT-23-55℃~+150℃ 1 NPN 100nA 160V 250mV 300mW 600mA 6V 80 NPN SOT-23 Bipolar (BJT) ROHSonsemiBipolar (BJT)
README
README.mdHW_Develop
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10K | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R3, R5, R7 |
| 2 | 220uF/35V | Capacitor_SMD:CP_Elec_8x10 | C3, C4 |
| 2 | 4.7K | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R6, R11 |
| 2 | 470KD07 | Varistor:RV_Disc_D7mm_W4.9mm_P5mm | RV1, RV2 |
| 2 | LED | LED_THT:LED_D3.0mm | D2, D6 |
| 2 | Receptor RF | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J2, J5 |
| 2 | SS34 | Kicad Modelos:SS34B-HF | D4, D5 |
| 1 | 0.1u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C6 |
| 1 | 0.1u | Capacitor_SMD:C_1206_3216Metric | C2 |
| 1 | 100K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9 |
| 1 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8 |
| 1 | 10uF/16V | Capacitor_SMD:CP_Elec_4x4.5 | C5 |
| 1 | 1N4148 | Diode_SMD:D_SOD-323_HandSoldering | D7 |
| 1 | 1N4148 | Diode_SMD:D_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1 |
| 1 | 33 uH/3.5A | Inductor_SMD:L_12x12mm_H8mm | L1 |
| 1 | 330 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4 |
| 1 | 330 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10 |
| 1 | AMS1117-3.3 | Kicad Modelos:TLV1117LV33DCYR | U2 |
| 1 | ANT | Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical | ANT1 |
| 1 | Conn_02x04_Counter_Clockwise | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J4 |
| 1 | ESP01 | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J3 |
| 1 | IN 12V | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J1 |
| 1 | LM2596S-5 | Kicad Modelos:LM2596TVADJG | U1 |
| 1 | MF-R110 | Fuse:Fuse_Bourns_MF-RHT100 | F1 |
| 1 | MMBT5551L | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | OUT | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3_1x03_P5.00mm_Horizontal | J10 |
| 1 | RESET | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1 |
| 1 | SANYOU_SRD_Form_C | Relay_THT:Relay_SPDT_SANYOU_SRD_Series_Form_C | K2 |
| 1 | Screw_Terminal_01x03 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3_1x03_P5.00mm_Horizontal | W26/34 |
| 1 | V-coil1 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | jumpers salida | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J9 |
Questions
How big is the RFW26 PCB?
It measures 100 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the RFW26 use?
41 parts, built around the LM2596S-5.0, AMS1117-3.3, 470KD07 and SS34. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the RFW26 KiCad files?
From the IoTCloudStudio/HW_Develop repository on GitHub, at the commit this page was made from: the board is Productivo/RFW26/PCB/RFW26/1 CAPA TESTING/RFW26.kicad_pcb and its schematic Productivo/Cloud UPS/V2/UPSV2concepttocheck.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the RFW26 design in my own project?
Its repository states no licence, so its author keeps all rights: ask IoTCloudStudio before reusing the design.
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